LEADER 03885nam 22004093a 450 001 9910831857803321 005 20250203235540.0 010 $a9783863096243 010 $a386309624X 024 8 $ahttps://doi.org/10.20378/irbo-53161 035 $a(CKB)4950000000290075 035 $a(ScCtBLL)a037b085-4a29-42e8-a813-f487480e3dff 035 $a(Perlego)2327349 035 $a(EXLCZ)994950000000290075 100 $a20250203i20192021 uu 101 0 $aeng 135 $auru|||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 00$aNew Concepts for Presence and Availability in Ubiquitous and Mobile Computing : $eEnabling Selective Availability through Stream-Based Active Learning /$fMirko Fetter$hVolume 33 210 1$a[s.l.] :$cBamberg University Press,$d2019. 215 $a1 online resource (1 p.) 225 1 $aSchriften aus der Fakultät Wirtschaftsinformatik und Angewandte Informatik 330 $aModern Computer-mediated Communication technologies like Instant Messaging (IM) systems enable spontaneous communication over distance. With the advances in Mobile and Ubiquitous Computing, these technologies move away from the desktop computers of our offices, and become more and more pervasive and interwoven with our daily lives. The introduction of these great possibilities to communicate from everywhere with everyone however comes at a cost: The cost of constantly being available to everybody, everywhere, leading to an increasing number of interruptions in our daily tasks. The challenge is, that current technology does not empower users to manage their availability in an adequate manner. Most IM clients for example, only support one single online status that needs to be managed manually by the user. In this work I am founding the concepts of Presence and Availability on a deep understanding of human privacy needs, derived from literature. Based on this foundation, I show how the selective and dynamic nature of privacy is not sufficiently reflected in current systems. Based on two user studies I reveal patterns for selective information disclosure and present an analysis of Selective Availability needs. With the collected study data, I further show that Selective Availability for nomadic users can be predicted based on sensors installed on the users' laptop computer with a good accuracy through machine learning. As the personalised nature of the data requires new concepts for building an adaptive system, I introduce the LILOLE Framework. The LILOLE Framework outlines the concept of an adaptive system that relies on stream-based active learning to continuously learn and automatically adapt fine-grained personal availability preferences for individual users. The concept is validated through a proof-of-concept implementation and an evaluation based on real user data. In comparison to related work, the presented work is one of very few examples that goes beyond the pure analysis of the predictability, but provides a concept and an implementation of a real system as validation. My approach is novel by combining concepts from Data Stream Mining and Active Learning to predict availability, thus making it very flexible for different settings. This way I am able to address the selective and dynamic nature of availability preferences for nomadic users. 410 $aSchriften aus der Fakultät Wirtschaftsinformatik und Angewandte Informatik 606 $aComputers / Software Development & Engineering$2bisacsh 606 $aComputers 615 7$aComputers / Software Development & Engineering 615 0$aComputers. 700 $aFetter$b Mirko$01786789 801 0$bScCtBLL 801 1$bScCtBLL 906 $aBOOK 912 $a9910831857803321 996 $aNew Concepts for Presence and Availability in Ubiquitous and Mobile Computing$94318963 997 $aUNINA